public XmlFormatClassReaderDelegate GenerateClassReader(ClassDataContract classContract)
{
if (DataContractSerializer.Option == SerializationOption.ReflectionOnly)
{
return(new ReflectionXmlClassReader(classContract).ReflectionReadClass);
}
#if uapaot
else if (DataContractSerializer.Option == SerializationOption.ReflectionAsBackup)
{
return(new ReflectionXmlClassReader(classContract).ReflectionReadClass);
}
#endif
else
{
#if uapaot
throw new InvalidOperationException("Cannot generate class reader");
#else
_ilg = new CodeGenerator();
bool memberAccessFlag = classContract.RequiresMemberAccessForRead(null);
try
{
_ilg.BeginMethod("Read" + classContract.StableName.Name + "FromXml", Globals.TypeOfXmlFormatClassReaderDelegate, memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag)
{
classContract.RequiresMemberAccessForRead(securityException);
}
else
{
throw;
}
}
InitArgs();
CreateObject(classContract);
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.AddNewObjectMethod, _objectLocal);
InvokeOnDeserializing(classContract);
LocalBuilder objectId = null;
if (classContract.IsISerializable)
{
ReadISerializable(classContract);
}
else
{
ReadClass(classContract);
}
if (Globals.TypeOfIDeserializationCallback.IsAssignableFrom(classContract.UnderlyingType))
{
_ilg.Call(_objectLocal, XmlFormatGeneratorStatics.OnDeserializationMethod, null);
}
InvokeOnDeserialized(classContract);
if (objectId == null)
{
_ilg.Load(_objectLocal);
// Do a conversion back from DateTimeOffsetAdapter to DateTimeOffset after deserialization.
// DateTimeOffsetAdapter is used here for deserialization purposes to bypass the ISerializable implementation
// on DateTimeOffset; which does not work in partial trust.
if (classContract.UnderlyingType == Globals.TypeOfDateTimeOffsetAdapter)
{
_ilg.ConvertValue(_objectLocal.LocalType, Globals.TypeOfDateTimeOffsetAdapter);
_ilg.Call(XmlFormatGeneratorStatics.GetDateTimeOffsetMethod);
_ilg.ConvertValue(Globals.TypeOfDateTimeOffset, _ilg.CurrentMethod.ReturnType);
}
//Copy the KeyValuePairAdapter<K,T> to a KeyValuePair<K,T>.
else if (classContract.IsKeyValuePairAdapter)
{
_ilg.Call(classContract.GetKeyValuePairMethodInfo);
_ilg.ConvertValue(Globals.TypeOfKeyValuePair.MakeGenericType(classContract.KeyValuePairGenericArguments), _ilg.CurrentMethod.ReturnType);
}
else
{
_ilg.ConvertValue(_objectLocal.LocalType, _ilg.CurrentMethod.ReturnType);
}
}
return((XmlFormatClassReaderDelegate)_ilg.EndMethod());
#endif
}
}
private void InvokeOnDeserializing(ClassDataContract classContract)
{
if (classContract.BaseContract != null)
{
InvokeOnDeserializing(classContract.BaseContract);
}
if (classContract.OnDeserializing != null)
{
_ilg.LoadAddress(_objectLocal);
_ilg.ConvertAddress(_objectLocal.LocalType, _objectType);
_ilg.Load(_contextArg);
_ilg.LoadMember(XmlFormatGeneratorStatics.GetStreamingContextMethod);
_ilg.Call(classContract.OnDeserializing);
}
}
private void InitArgs(Type objType)
{
_xmlWriterArg = _ilg.GetArg(0);
_contextArg = _ilg.GetArg(2);
_dataContractArg = _ilg.GetArg(3);
_objectLocal = _ilg.DeclareLocal(objType, "objSerialized");
ArgBuilder objectArg = _ilg.GetArg(1);
_ilg.Load(objectArg);
// Copy the data from the DataTimeOffset object passed in to the DateTimeOffsetAdapter.
// DateTimeOffsetAdapter is used here for serialization purposes to bypass the ISerializable implementation
// on DateTimeOffset; which does not work in partial trust.
if (objType == Globals.TypeOfDateTimeOffsetAdapter)
{
_ilg.ConvertValue(objectArg.ArgType, Globals.TypeOfDateTimeOffset);
_ilg.Call(XmlFormatGeneratorStatics.GetDateTimeOffsetAdapterMethod);
}
//Copy the KeyValuePair<K,T> to a KeyValuePairAdapter<K,T>.
else if (objType.IsGenericType && objType.GetGenericTypeDefinition() == Globals.TypeOfKeyValuePairAdapter)
{
ClassDataContract dc = (ClassDataContract)DataContract.GetDataContract(objType);
_ilg.ConvertValue(objectArg.ArgType, Globals.TypeOfKeyValuePair.MakeGenericType(dc.KeyValuePairGenericArguments));
_ilg.New(dc.KeyValuePairAdapterConstructorInfo);
}
else
{
_ilg.ConvertValue(objectArg.ArgType, objType);
}
_ilg.Stloc(_objectLocal);
}
void InitArgs(Type objType)
{
xmlWriterArg = ilg.GetArg(0);
contextArg = ilg.GetArg(2);
dataContractArg = ilg.GetArg(3);
objectLocal = ilg.DeclareLocal(objType, "objSerialized");
ArgBuilder objectArg = ilg.GetArg(1);
ilg.Load(objectArg);
// Copy the data from the DataTimeOffset object passed in to the DateTimeOffsetAdapter.
// DateTimeOffsetAdapter is used here for serialization purposes to bypass the ISerializable implementation
// on DateTimeOffset; which does not work in partial trust.
if (objType == Globals.TypeOfDateTimeOffsetAdapter)
{
ilg.ConvertValue(objectArg.ArgType, Globals.TypeOfDateTimeOffset);
ilg.Call(XmlFormatGeneratorStatics.GetDateTimeOffsetAdapterMethod);
}
else
{
ilg.ConvertValue(objectArg.ArgType, objType);
}
ilg.Stloc(objectLocal);
}
public XmlFormatClassReaderDelegate GenerateClassReader(ClassDataContract classContract)
{
if (DataContractSerializer.Option == SerializationOption.ReflectionOnly)
{
return(CreateReflectionXmlClassReader(classContract));
}
else
{
_ilg = new CodeGenerator();
bool memberAccessFlag = classContract.RequiresMemberAccessForRead(null);
try
{
_ilg.BeginMethod("Read" + classContract.XmlName.Name + "FromXml", Globals.TypeOfXmlFormatClassReaderDelegate, memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag)
{
classContract.RequiresMemberAccessForRead(securityException);
}
else
{
throw;
}
}
InitArgs();
CreateObject(classContract);
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.AddNewObjectMethod, _objectLocal);
InvokeOnDeserializing(classContract);
LocalBuilder?objectId = null;
if (HasFactoryMethod(classContract))
{
objectId = _ilg.DeclareLocal(Globals.TypeOfString, "objectIdRead");
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.GetObjectIdMethod);
_ilg.Stloc(objectId);
}
if (classContract.IsISerializable)
{
ReadISerializable(classContract);
}
else
{
ReadClass(classContract);
}
bool isFactoryType = InvokeFactoryMethod(classContract, objectId);
if (Globals.TypeOfIDeserializationCallback.IsAssignableFrom(classContract.UnderlyingType))
{
_ilg.Call(_objectLocal, XmlFormatGeneratorStatics.OnDeserializationMethod, null);
}
InvokeOnDeserialized(classContract);
if (objectId == null || !isFactoryType)
{
_ilg.Load(_objectLocal);
// Do a conversion back from DateTimeOffsetAdapter to DateTimeOffset after deserialization.
// DateTimeOffsetAdapter is used here for deserialization purposes to bypass the ISerializable implementation
// on DateTimeOffset; which does not work in partial trust.
if (classContract.UnderlyingType == Globals.TypeOfDateTimeOffsetAdapter)
{
_ilg.ConvertValue(_objectLocal.LocalType, Globals.TypeOfDateTimeOffsetAdapter);
_ilg.Call(XmlFormatGeneratorStatics.GetDateTimeOffsetMethod);
_ilg.ConvertValue(Globals.TypeOfDateTimeOffset, _ilg.CurrentMethod.ReturnType);
}
else if (classContract.UnderlyingType == Globals.TypeOfMemoryStreamAdapter)
{
_ilg.ConvertValue(_objectLocal.LocalType, Globals.TypeOfMemoryStreamAdapter);
_ilg.Call(XmlFormatGeneratorStatics.GetMemoryStreamMethod);
_ilg.ConvertValue(Globals.TypeOfMemoryStream, _ilg.CurrentMethod.ReturnType);
}
else
{
_ilg.ConvertValue(_objectLocal.LocalType, _ilg.CurrentMethod.ReturnType);
}
}
return((XmlFormatClassReaderDelegate)_ilg.EndMethod());
}
}
